Phosphorus is mostly found in rocks in combination with
Calcium
Iron
Aluminium
All of these
Is the common edible mushroom an autotroph or a heterotroph ?
Breakdown of detritus into smaller particles by earthworm is a process called
If there was no $CO_2$ in the earth's atmosphere, the temperature of earth's surface would be
Biogeochemical cycling refers to cycling of
An individual transitional communities in ecological succession are termed as